Function locked by FCL
Cause of error
In Cycle 22 (ISO: G122), you tried to define the feed-rate factor Q401 to be less than 1. This upgrade feature is locked on your TNC by the FCL management.
After a software update, upgrade functions are locked by default. By entering the code number 65535 in the SIK menu you can
enable these functions for a certain test period. You can enable the FCL functions permanently by purchasing and entering
number. For more information, refer to your machine manufacturer or to HEIDENHAIN.